344 results about "Materials testing" patented technology

The invention relates to the technical field of wind power blade material testing, and discloses a testing device and method for a salt spray corrosion test of a wind power blade composite material layer. According to the method, wind power blade composite material coating preparation parameters are obtained, and coating basic information is provided for subsequent performance evaluation; based on preset salt spray test environment control parameters, dynamic salt spray environment simulation conditions are generated so as to better fit the actual outdoor environment; then, a multi-sensor coupling monitoring network is constructed, real-time data acquisition is conducted on the corrosion process of the composite material coating, and comprehensive tracking of the corrosion process is achieved; processing real-time data by utilizing a corrosion characteristic analysis algorithm, generating a multi-dimensional corrosion characteristic index, and quantitatively representing the corrosion condition of the coating; and finally, evaluating the anti-corrosion stability of the new material coating in combination with the coating characteristic parameters and the multi-dimensional corrosion characteristic indexes. According to the method, the corrosion resistance of the coating in the actual environment can be more accurately reflected, and support is provided for research, development and application of the composite coating of the wind power blade.

The invention discloses a building material mechanical testing system based on multi-algorithm fusion, and belongs to the technical field of building material testing, and the system comprises an initial damage quantification module which is used for obtaining detection information of a tested material test piece before mechanical loading and generating a quantitative evaluation result; the loading and information acquisition module is used for applying a mechanical load to the tested material test piece with the generated quantitative evaluation result and acquiring a mechanical response signal and a microscopic state signal of the tested material test piece; the damage analysis module is used for calling a preset second data processing algorithm and analyzing and generating a dominant damage path; and the diagnosis and prediction module is used for integrating the associated data atlas and the dominant damage path information, generating a material performance diagnosis report and constructing a prediction model through a preset third data processing algorithm. According to the method, the initial damage of the tested material test piece is quantified, so that systematic deviation of a test result caused by neglecting the initial damage is corrected.

The invention relates to the technical field of material detection, and particularly discloses a method for determining content distribution of impurity elements in gradient depth of a surface layer of a quartz glass product. The method comprises the following steps: (1) putting a sample into a corrosion-resistant container in a clean environment; (2) adding 5-20wt% of hydrofluoric acid solution for etching, and collecting an extraction solution; (3) evaporating a part of the extraction solution to dryness, and adding 1-3wt% of nitric acid to dissolve residues; (4) measuring the concentration of impurity elements; (5) diluting the leaching solution, and then measuring the concentration of the silicon element; (6) performing a blank experiment; (7) calculating the etching quality and depth according to a formula; and (8) calculating the content of impurity elements in combination with the etching quality. According to the method, layer-by-layer analysis of the surface layer of the quartz glass at different depths in a range from submicron to tens of microns is realized, and the enrichment layer or diffusion gradient of impurity elements can be clearly and intuitively revealed.

The invention discloses a seawater environment biaxial mechanical loading device based on synchrotron radiation X-ray diffraction, and belongs to the technical field of material testing in a seawater environment. Comprising a ray generator, and a slit, a mechanical loading device and a detector are sequentially arranged along a light path of the ray generator; a seawater environment box is arranged in the center of the mechanical loading device, and a three-dimensional adjusting platform is arranged below the mechanical loading device; by adopting the structure, in-situ characterization and analysis of corrosion product evolution at the crack are realized under the near-service working condition of a complex stress state and a seawater corrosion environment, and a technical support is provided for revealing a microcrack corrosion failure mechanism of a marine material under the near-service working condition.

The invention relates to the technical field of composite material testing, in particular to a recycling method and device for composite material tensile fragments, and the method comprises the steps that the bottom of a protective cover is adjusted to a preset inclination angle through an angle adjusting mechanism; covering a protective cover outside a clamping block for clamping the composite material in the tensile test device, so as to collect fragments generated in the tensile process of the composite material through the protective cover; the fragments in the protective cover are blown to the bottom of the protective cover through a plurality of air injection assemblies; and the fragments at the bottom of the protective cover are adsorbed through the movable suction cup and transferred to a preset recycling area outside the protective cover. According to the technical scheme, splashing fragments can be blocked through the protective cover, the fragments are guided to fall to the bottom of the protective cover in a concentrated mode, meanwhile, the fragments attached to the side wall of the protective cover and clamped in the grooves of the clamping blocks are blown through the air injection assemblies, and the collection efficiency of the composite material tensile fragments is improved.

The utility model relates to the technical field of building material detection, and provides a steel bar tensile strength tester, which comprises a tester assembly, a steel bar tensile strength tester, a steel bar tensile strength tester and a steel bar tensile strength tester, the tester assembly comprises a base and a tester body, and the tester body is fixedly connected to the upper end position of the base; the limiting assembly comprises sliding grooves, sliding blocks, first fixing shafts, first connecting rods, second fixing shafts, fixing blocks and limiting circular rings, the sliding grooves are formed in the two sides of the upper end of the base and the two sides of the bottom end of the tester body respectively, the sliding blocks are slidably connected to the inner portions of the sliding grooves, and the first fixing shafts are fixedly connected to the inner sides of the upper ends of the sliding blocks. The beneficial effects of the utility model are that the limiting assembly is arranged, the limiting circular ring is fixed at the position of the clamp, and the limiting circular ring is located at the outer side of the clamp, so that the two ends of the reinforcing steel bar respectively penetrate through the limiting circular ring to enter the clamp, the reinforcing steel bar can be kept in a vertical state to carry out tensile strength detection, and the detection accuracy is high.

This invention provides a method and apparatus for testing the mechanical properties of bolted composite materials in a single shear test, relating to the field of material testing and analysis. The method includes: calculating pixel equivalents and establishing a displacement conversion relationship between image displacement and actual physical displacement; adjusting the front and rear positions of the first extensometer clip and / or the second extensometer clip using positioning screws based on the spot deviation; activating the extensometer and high-speed camera to acquire extensometer displacement data sequences and tracer point sequence images, performing image displacement conversion processing on the sequence images to obtain a high-speed camera displacement data sequence; calculating the displacement deviation between the extensometer displacement data sequence and the high-speed camera displacement data sequence to generate a corrected extrusion deformation; and calculating the mechanical property parameters using real-time load, the corrected extrusion deformation, and preset specimen geometric parameters. This achieves high-precision measurement of extrusion deformation and automatic calculation of multi-dimensional mechanical property parameters in a single shear test.

The invention discloses a heat preservation box temperature control system and method for a composite pipe service life comprehensive evaluation and detection device, and relates to the technical field of composite material testing. The system comprises a heater used for heating a medium in a heat preservation box; the servo circulating pump is used for driving a medium in the heat preservation box to circularly flow; the plurality of circulating pipelines are connected to the servo circulating pump, and each circulating pipeline is provided with an electromagnetic valve; each rotatable spray head is communicated with the servo circulating pump through a circulating pipeline, and the spraying direction can be changed; the plurality of temperature sensors are distributed in the heat preservation box and are used for detecting the temperatures of different point positions in real time; and the controller is in signal connection with the plurality of temperature sensors, the servo circulating pump, the electromagnetic valves and the servo motors. According to the invention, high-precision, quick response and uniform control of the internal temperature field of the incubator can be realized, and the reliability and accuracy of a composite pipe service life evaluation experiment are ensured.

This invention belongs to the field of testing materials technology, specifically relating to a non-destructive testing device and method based on radiation. It includes a base and an XY-axis displacement mechanism connected to each other, and further includes: an X-ray tube and a filter collimation channel, vertically connected sequentially to the XY-axis displacement mechanism; a heat dissipation assembly disposed inside the X-ray tube; and a heat insulation locking assembly disposed inside the filter collimation channel and communicating with the heat dissipation assembly. The heat dissipation assembly contains multiple heat-conducting media distributed at designated locations within the X-ray tube, with one type of heat-conducting medium flowing sequentially from the heat insulation locking assembly, the X-ray tube, to the heat dissipation assembly. This invention improves the temperature uniformity of the X-ray base environment required for testing materials, solving the problem of radiation filter plates deviating from design values ​​due to accelerated oxidation at high temperatures, thereby improving the flaw detection accuracy during material testing.

The utility model discloses a gypsum board impact resistance tester, which belongs to the technical field of building material test devices and comprises a base, a workbench is fixedly mounted at the top end of the base, a steel frame is fixedly mounted on one side of the workbench at the top end of the base, and linear guide rails are fixedly mounted on two sides of the steel frame. Linear bearing sliding blocks are slidably connected to the sliding ends of the linear guide rails, connecting blocks are fixedly installed on one sides of the two linear bearing sliding blocks, a lifting platform is fixedly installed on one sides of the two connecting blocks, and a magnetic attraction block is fixedly installed on one side of the lifting platform and located in the middle of the steel frame and located on the top of the steel frame; a magnetic attraction seat matched with the magnetic attraction block is fixedly mounted at the top of the steel frame; the positioning precision of a gypsum board impact resistance test is remarkably improved, the influence of human factors is reduced, the accuracy of hitting the intersection of two diagonal lines on the surface of a test piece under the condition of a rectangular test piece is improved, and the steel ball can accurately and freely fall to the centroid position of the surface of the test piece in each test.

This invention discloses a testing device and method for tensile deformation of fiber-reinforced cementitious materials, belonging to the field of engineering material testing technology. The testing device mainly includes three parts: a support frame, a lever system, and a specimen mounting system. The main steps of the testing method include: lifting the lever to unload; installing the specimen mounting system, slowly releasing the lever and finely adjusting the position of the tensile specimen to reduce eccentricity and achieve preloading; repeatedly lifting and unloading the lever, and finely adjusting the centering tensile clamp and the tensile specimen; installing the displacement sensor and zeroing it in the unloaded state; adjusting the weight of the lever according to the real-time display value of the force sensor to complete the suspension and precise loading of the tensile specimen. This method applies tensile force to the cement-based composite material through the lever mechanism and performs arbitrary crack propagation evaluation based on the micro-cracks in the cement-based material using digital image processing, which can quantitatively characterize the creep deformation and crack propagation process of cement-based composite materials under continuous tensile load.

The invention belongs to the technical field of material testing, and discloses a connecting assembly of a high and low temperature test box universal testing machine, which comprises a bearing assembly, two clamping assemblies are arranged in the bearing assembly, the bearing assembly comprises a support frame, the support frame is connected with a test box, two partition plates are connected in the test box, and the two partition plates are arranged on the support frame. The test box is internally provided with a test cavity, the test cavity is located between the two partition plates, the two clamping assemblies move in the test cavity, and adaptation to test pieces of different specifications is achieved through cooperation of the multiple assemblies. A telescopic part in the bearing assembly can adjust the distance between the two clamping assemblies to meet the requirements of test pieces with different lengths; the restraining block of the clamping assembly slides along the sliding groove, and the diameter of the threaded cavity can be changed to adapt to test pieces with different diameters. Meanwhile, the tapping part can adjust tapping parameters according to the material of the test piece, and is matched with a constraint block pressure sensor for monitoring, so that the tapping effect of the high-hardness test piece is ensured, and stable clamping of the test pieces of various sizes and materials is realized.

The invention relates to a device and method for simulating the impact corrosion process of flying droplets, the device comprises a rotary centrifugal system, a test system and a shooting system, the rotary centrifugal system comprises a rotor, a liquid pipeline and a driving part, and the test system comprises a material test assembly and a resistance probe test assembly. The shooting system is used for recording the impact corrosion process of the flying liquid drops; according to the method, corrosive medium liquid is introduced into the communicating cavity of the rotor through the liquid pipeline, the corrosive medium liquid is captured and crushed through the silk screen under the action of centrifugal force generated by rotation of the rotor, and the corrosive medium liquid is thrown out in the form of liquid drops and impacts the material testing assembly and / or the resistance probe testing assembly, so that the impact corrosion process of flying liquid drops is simulated.

The invention discloses a novel right-angle steel material detection jig which comprises a fixed seat, a first track, a second track, a first stop block, a second stop block and a fiber board, a first track groove is formed in the fixed seat, and the first track is detachably connected into the first track groove; a first track groove is formed in the fixed seat, a second track groove is formed in the fixed seat and located on one side of the first track groove, and a second track is detachably connected to the interior of the second track groove. The gauge calibration slide rail is manually pushed at a constant speed to move back and forth to measure right angle data of a steel material, a traditional detection mode can be replaced, the detection precision can be ensured, the manual measurement time can be shortened, the detection speed can be improved, a specially-assigned person is not needed for detection, the labor cost can be reduced, and the jig is portable, does not occupy a machining machine table and is convenient to use. And the overall use effect can be improved.

The utility model discloses a self-adaptive force stabilizing device for characterizing a mechanoluminescence cycle process, and belongs to the technical field of material testing. According to the device, collaborative operation is achieved through a reciprocating testing mechanism and a force loading mechanism which are in linkage design; the reciprocating testing mechanism drives a lead screw transmission assembly through a servo motor to drive a single-axis moving platform, a pressure digital display and a material to achieve reciprocating friction in the y-axis direction; the force loading mechanism pulls a sliding platform to slide on a sliding rail through a spring, a round-bottom quartz tube is arranged at the end of the force loading mechanism and is in point contact with a sample of a pressure digital display accessory, and when the sample is slightly abraded to cause position change, the spring dynamically compensates pressure loss to ensure that force loading in the x-axis direction is constant. An optical fiber is integrated in the round-bottom quartz tube to synchronously collect mechanoluminescence signals. The device solves the problem of force attenuation in the existing cycle test, and is beneficial to systematic research on the cycle characteristics of the mechanoluminescent material.

The present application belongs to the field of material testing, and particularly relates to a viscoelastic material bulk modulus measuring device and method based on an electric measuring method, wherein the measuring device comprises a pressure tank and a viscoelastic material testing support; the viscoelastic material testing support comprises a fixing frame and a plurality of sets of deformation testing clamps; the deformation testing clamp comprises a fixed elastic sheet, a testing elastic sheet and a clamp block, the fixed elastic sheet is provided with a hollow slot in the middle, the testing elastic sheet is arranged through the hollow slot, and the fixed elastic sheet and the testing elastic sheet are perpendicular to each other, a strain gauge is pasted on the testing elastic sheet, adjacent one end of the fixed elastic sheet and the testing elastic sheet is fixedly arranged on the fixing frame, and adjacent the other end is fixedly arranged on the clamp block, and the clamp block is provided with an abutting rod perpendicular to the arrangement direction of the testing elastic sheet. The present application realizes direct and high signal-to-noise ratio measurement of the bulk strain of the viscoelastic material under a hydrostatic pressure environment by precisely isolating non-measurement direction interference through the double elastic sheet structure of the fixed elastic sheet and the testing elastic sheet of the deformation testing clamp.

The utility model discloses a flexible foaming raw material detection device which comprises a first supporting frame and a second supporting frame, the first supporting frame is arranged at the top end of the second supporting frame, a positioning barrel is arranged at the top end of the second supporting frame, a first air cylinder body is arranged at the top end of the first supporting frame, and a second air cylinder body is arranged at the top end of the second supporting frame. The first air cylinder body is provided with a first heating mechanism matched with the upper end of the positioning barrel through a piston rod. A second air cylinder body is arranged at the bottom end of the second supporting frame and provided with a pressure sensor through a piston rod, and the pressure sensor is provided with a second heating mechanism matched with the lower end of the positioning barrel through an ejector rod. The flexible foaming raw material detection device disclosed by the utility model is simple in structure, ingenious in design and practical in function, and effectively solves the problem that the quality of a flexible rubber and plastic foaming product is influenced as parameters such as foaming ratio, hardness and the like of a rubber sheet cannot be pre-judged.

This invention discloses a multi-angle filling material testing device, belonging to the technical field of material testing devices. It includes a base and a vertical plate vertically mounted on the base. A first traction structure is provided on the base, and a second traction structure is provided on the vertical plate. A bottom plate is slidably connected to the base and the vertical plate. A material cylinder is provided on the bottom plate, and the material cylinder is provided with a lifting and pressing structure and a feed inlet. The lifting and pressing structure is provided with a compensation structure and a vibration structure. This invention fills the material cylinder with filling material and uses the first and second traction structures to move the bottom plate, adjusting the tilt angle of the material cylinder. The lifting and pressing structure adjusts the angle of the upper surface of the filling material to conduct tests on the filling material under different pressure angles. Simultaneously, the vibration structure strikes the compensation structure, causing the compensation structure to extend into the filling material, subjecting the filling material to vibration and gas blowing, thereby ensuring uniform material distribution and guaranteeing the accuracy of the test results.

The utility model discloses a polyester-cotton gray fabric tensile property detection device. A control assembly comprises a base; the moving assembly is used for realizing the movement of the tensile property detection device; and the tensile property detection assembly is mounted on one side of the moving seat in the moving assembly and is used for detecting the tensile property of the polyester-cotton gray fabric. According to the utility model, one end of the polyester-cotton gray fabric is placed between the two wedge-shaped clamping jaws at the upper end, and the control button is utilized to drive the electric push rod to push towards the inside of the detection frame, so that the two wedge-shaped clamping jaws incline and slide downwards under the connection of the push block and the positioning block, and the polyester-cotton gray fabric is electrically clamped; then the tail end of the polyester-cotton gray fabric is placed between the wedge-shaped clamping jaws at the lower end, the polyester-cotton gray fabric can be clamped in the same step, so that the clamping force can be uniform in an electric clamping mode, and the clamping ends of the wedge-shaped clamping jaws are provided with anti-skid protrusions to increase the roughness of the contact surface of the clamp, so that the anti-skid effect of the clamp is effectively improved; and the accuracy and repeatability of material testing are ensured.

A test specimen (10), in particular for pressing into an object (12) to be tested, which is, for example, a covering system for buried steel pipes (14), has the shape of a truncated pyramid, truncated cone or a hemispherical layer with a base area (10g) and a top surface (10d), wherein - the projection of the top surface onto the base surface lies within the base surface; - the top surface is parallel to the base surface. A method for determining the mechanical strength of a casing system for buried steel pipes includes the following: - the test specimen is pressed from the outside against the encapsulation system with the top surface facing forward, according to a predetermined path and / or force profile; - the penetration depth of the test specimen into the encapsulation system is recorded; - the load-bearing capacity is determined depending on the measured penetration depth. A test rig (16) for determining the mechanical strength of a casing system for buried steel pipes comprises - a holding system (18); - a material testing machine (20) that can press the test specimen with the top surface forward against the encapsulation system; - a measuring device (22) that can detect the penetration depth of the test specimen into the encapsulation system; - a control device (24) which, according to the procedure, can control the material testing machine and the measuring device and determine the load-bearing capacity. The test specimen is used to determine the mechanical load-bearing capacity according to the procedure.

The utility model discloses a kind of impact performance test equipment, specifically related to test equipment technical field, including base, the base surface is fixedly installed with test plate, the upper of test plate is provided with the impact piece of lift activity, the bottom end of impact piece is installed with the impact mechanism of telescopic activity, the upper of impact piece is provided with equipment top plate, equipment top plate is connected with the limiting rod of several to the limiting of impact piece lift activity between base, equipment top plate is installed with the driving piece of driving impact piece and impact mechanism lift activity, driving piece and the top end between impact piece are connected with detachable docking piece.The utility model can adjust impact weight by counterweight plate, switch elastic and rigid two impact modes using limiting plug rod, reset spring under elastic mode makes impact head bounce to simulate dynamic impact, rigid mode can lock impact rod to realize static test, cover more extensive material test demand by switching two states.

The present application relates to the technical field of material testing, in particular to a sample and tool for testing Z-direction fatigue performance of laminated composite material, the sample is axisymmetric dumbbell-shaped, comprising a middle test section and two end holding ends, and the bonding interface is located in the test section; the diameter of the test section is 5-10 mm, and the diameter of the holding end is greater than or equal to 2 times the diameter of the test section; the thickness of the holding end is not less than 5 mm, and the axial distance from the inner side end face to the bonding interface is not less than 3 mm, so that the interface is ensured to be in a uniform stress area; the transition area is smoothly connected by a circular arc with a radius of greater than or equal to 2 mm. The present application can accurately and repeatedly characterize the Z-direction interface fatigue performance on a conventional fatigue testing machine, and solves the problem that the traditional composite material joint sample cannot test the real joint interface performance.

This invention relates to the field of materials testing technology, and discloses a mass spectrometer calibration method, system, intelligent terminal, and storage medium. The method includes: subtracting background signal from the raw mass spectrometry data to obtain standard mass spectrometry data; performing dynamic threshold peak detection on the standard mass spectrometry data to obtain the characteristic peaks of the mass spectrometer, thereby constructing a multidimensional feature vector; performing weighted similarity evaluation on the multidimensional feature vector and a preset standard feature library to obtain a similarity value; performing threshold screening on the similarity value, and comparing the screened candidate feature vectors with the corresponding standard feature vectors in the standard feature library using multidimensional deviation to obtain a systematic deviation parameter; performing non-uniform interpolation fitting on the systematic deviation parameter to obtain a continuous calibration curve; performing point-by-point correction on the standard mass spectrometry data, and outputting the calibrated mass spectrometry data. This invention can improve the calibration efficiency of mass spectrometers.

During material testing, the user can determine whether the shape of the output waveform is appropriate. [Solution] The fatigue testing machine 1 is a fatigue testing machine that performs a fatigue test to measure the mechanical properties of a test piece TP by applying a test force F to the test piece TP, and comprises a hydraulic actuator 18 that applies a test force F to the test piece TP, a generation unit 511 that generates a sinusoidal input waveform W1 that is a target value of the test force F, a detection unit 513 that detects the test force F applied by the hydraulic actuator 18 to the test piece TP, and a calculation unit 514 that calculates the strain rate HD of the output waveform W2 that is the detection result of the detection unit 513 while the fatigue test is being performed.

The utility model provides high accuracy PCBA board material test equipment belongs to PCBA board material test technical field. Include: adjustment assembly, adjustment assembly includes the first guide groove of setting at the top of support plate, is provided with the sliding block on the first guide groove sliding, the bottom of sliding block is provided with the moving link, the bottom of support plate is provided with the auxiliary rod, the inside of auxiliary rod is provided with the sliding guide seat of sliding, the top of sliding guide seat is provided with the second guide groove, the moving link is connected in the sliding guide seat and the second guide groove inside, the first guide groove is fixed in the top of support plate, provides the horizontal sliding track for sliding block, passes through the power drive its translation, the moving link of sliding block bottom follows, and the second guide groove of the top of sliding guide seat is connected, the inside of auxiliary rod is in the support plate bottom, the sliding guide seat can along the sliding, drives the moving link synchronous displacement, passes through the bidirectional sliding of sliding block and sliding guide seat, and the moving link is linked in cross -over guide structure.

The utility model discloses an integrated corrosive liquid circulating device for stress corrosion fatigue test, and particularly relates to the field of material testing, the integrated corrosive liquid circulating device comprises a storage box, one side of the storage box is connected with a limiting assembly through a water pipe, the limiting assembly comprises a test box, and electric telescopic rods are symmetrically and fixedly arranged in the test box; sliding blocks are fixedly connected to one sides of the electric telescopic rods, connecting frames are arranged on one sides of the sliding blocks, rotating shafts are arranged at the two ends of each connecting frame, buffering pads are fixedly arranged on one sides of the connecting frames, and a limiting plate is fixedly arranged on the other side of the interior of the storage box. According to the utility model, the limiting assembly, the connecting frame and the limiting plate are matched to limit the sample, so that the position of the sample is ensured to be stable in the test process, displacement or shaking caused by factors such as flowing of corrosive liquid and vibration of test equipment is avoided, and further non-uniform stress distribution caused by change of the position of the sample is effectively avoided; therefore, the reliability of test data is influenced.

This invention belongs to the field of textile material testing, and relates to a moisture absorption testing device, specifically a moisture absorption testing device, its testing method, and its application. It includes a lifting platform, on which a testing device and a columnar material fixing tube are mounted. The testing device includes a testing plate and a core structure located at the center of the testing plate. The core structure is situated below the columnar material fixing tube and connected to a liquid reservoir via a liquid guide tube. The liquid reservoir is located above an electronic balance; the electronic balance is connected to a data acquisition unit. The dynamic moisture absorption process of the columnar material is recorded and characterized through the testing plate with its upper and lower perforations. This enables performance testing and characterization of upright columnar materials.

The application relates to the field of crosslinked material testing, and discloses a multi-station creep tensile testing machine and a control method thereof. Through the arrangement of a connecting rod mechanism, a load is loaded on a cross arm through a steel cable, and the load on the cross arm acts on a vertical arm. The vertical arm can always keep parallel with a fixing frame. The force of the vertical arm on a main driving arm and a vice driving arm is always kept on the central axis of the vertical arm, so that the force arm of the load on both sides of the fixing frame remains unchanged and is not affected by the change of the position and direction of the load force, thereby guaranteeing the stability of the load during the loading process of the test piece. Through the arrangement of multiple test stations, multiple test pieces are independently tested and do not affect each other, so that the test of multiple test pieces can be completed on the same rack, the material test efficiency is improved, and the mechanical structure disclosed by the application occupies a small floor space and reduces the cost investment of the testing machine.

According to embodiments of the present application, there is provided a material testing apparatus comprising: a guiding mechanism; a sample holding mechanism for holding a sample; a force applying mechanism, the force applying mechanism comprising a first actuator for applying a releasable force to the sample; a crosshead supported on the guiding mechanism and arranged to support at least a portion of one or both of the sample holding mechanism and the force applying mechanism; an energy store arranged to store regenerated energy from at least the first actuator; an energy consumer arranged to at least partially consume energy from the energy store, wherein the energy consumer comprises the first actuator; and a controller configured to control the first actuator to release the force applied to the sample, wherein the first actuator is arranged to output the regenerated energy based on the release of the force.